What is chittymcp GEMINI.md?

A set of Gemini CLI instructions for developing the ChittyMCP repository, which acts as a central router for ChittyOS MCP services. Gemini CLI is a command-line coding assistant, and MCP is a standard for connecting assistants to tools.

Use it when modifying, building, running, or validating the ChittyMCP repository, especially when deciding whether new tool logic belongs in another ChittyOS worker.

It tells contributors where tool logic belongs, which documents define project rules, and which historical code must not be changed.

How chittyos/chittymcp configures Gemini CLI

Reuse

Borrowing it

Nothing to install: this file belongs to chittyos/chittymcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/chittyos/chittymcp/main/GEMINI.md

Clone the repo

git clone --depth 1 https://github.com/chittyos/chittymcp

Made for: Gemini CLI.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/chittyos/chittymcp/gemini-md/github.svg)](https://agentmods.dev/instructions/chittyos/chittymcp/gemini-md)

Your own site

<a href="https://agentmods.dev/instructions/chittyos/chittymcp/gemini-md"><img src="https://agentmods.dev/badge/instructions/chittyos/chittymcp/gemini-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/chittyos/chittymcp/gemini-md"><img src="https://agentmods.dev/badge/instructions/chittyos/chittymcp/gemini-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,674 This file is loaded in full into every session.

When invoked 1,674 The same file — it is already loaded in full.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.01674	$0.01674
Opus 5.5	$0.00670	$0.00670
Sonnet 5.5	$0.00335	$0.00335
Haiku 4.5	$0.00167	$0.00167

Measured 2mo ago against content hash e9b7db0def17, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

chittymcp GEMINI.md scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s https://mcp.chitty.cc/health | jq .

GEMINI.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Gemini CLI Instructions — ChittyMCP

This document provides foundational mandates, workspace topology, and operational guidelines for Gemini CLI when working inside the chittymcp repository.

CRITICAL ARCHITECTURAL BOUNDARY: This repository is the universal aggregator/router for the ChittyOS MCP ecosystem, deployed as a single Cloudflare Worker (src/worker/index.ts) at mcp.chitty.cc. It is NOT a tool-implementation repository. Tool logic lives in individual chittyagent-<name> workers (located in separate repositories like github.com/CHITTYOS/chittyentity). Do not implement new tool logic here.

📖 Essential Documents & Source of Truth

Always read and align with these canonical documents before making changes:

File	Role & Authority
`CLAUDE.md`	Dev-specific workflows, command reference, and strict "no mock data" policy.
`CHARTER.md`	Platform service classification, scope limits, peer dependencies, and compliance criteria.
`docs/MCP-SOP.md`	Canonical Standard Operating Procedure for naming conventions, transport profiles, argument schemas, prompts/resources rules, and onboarding upstreams.
`docs/ONBOARDING.md`	Step-by-step procedure to deploy and register a new upstream service.
`docs/agent-registry-triage.json`	Live triage tracking of which services are actively deployed (Bucket A) or excluded (Bucket C).
`wrangler.jsonc`	Live service bindings configuration list (the active system boundaries).
`src/worker/index.ts`	The core data-driven aggregator itself (routes, JWT assertions, dynamic service mapping).

🚫 Legacy Warning: Historical Code (DO NOT TOUCH)

The codebase contains historical Node-based MCP server code from before the Cloudflare Worker aggregator refactor. These files are NOT the live system.

DO NOT add new code, edit, or refactor these folders/files unless specifically instructed to migrate them:

src/servers/ (e.g., unified-server.js, evidence-server.js)
src/core/, src/integration/, src/tools/
mcp-evidence-server/, mcp-unified-consolidated/, services/mcp-exec/
mcp-chittyconnect/, mcp-http-chronicle/, mcp-gateway-chatgpt/
casey-offer.js, mcp-handler.js, mcp-project-sync.js
config/chains.json, config/claude-desktop-config.json, mcp-sync-config.json
chittyos-cloudflare-mcp/, chittyos-executive-mcp/, chittyos-mcp-extension/

Read the full file on GitHub · 117 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 117 lines · 1,674 tokens per session scan A e9b7db0def17

Subscribe to this mod's changes

chittymcp GEMINI.md is an instructions file published in the GitHub repository chittyos/chittymcp (0 stars, last pushed 5d ago), licensed MIT. It adds 1,674 tokens to every session, about $0.0067 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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chittymcp: Instructions file for Gemini CLI